A connecting and driving device for a switch machine and the switch machine

Abstract

The present invention discloses a connecting and transmission device for a switch machine and a switch machine. The connecting and transmission device of the switch machine includes a connecting plate; a vertical frame is provided at the rear end of the top of the connecting plate; the upper parts of the left and right ends on the front side of the vertical frame are respectively hinged to the upper ends of a rocker; the lower ends of each rocker are respectively hinged to the left and right ends of a connecting rod; a fork pin shaft is respectively arranged in the middle of each rocker; the middle position of the connecting rod is slidably connected to the rear end of a shift lever; the connecting plate is fixedly arranged on the top surface of the original contact seat of the switch machine; the front end of the shift lever is fixedly arranged on the upper surface of the support frame of the original contact seat 11 of the switch machine; a sealed contact group is respectively arranged at both ends of the top of the connecting plate; each fork pin shaft is respectively located in the original sealed contact Y-shaped sub-port of the sealed contact group. The present invention can safely and reliably realize the transmission between the original contact seat of the switch machine and the sealed contact group.

Description

Technical Field

[0001] The present invention relates to the technical field of railway switch conversion equipment, and particularly relates to a connecting and driving device of a switch machine and a switch machine. Background Art

[0002] A switch machine is an important signal basic equipment used to reliably convert the position of a switch, change the opening direction of the switch, lock the switch point rail, and reflect the position of the switch.

[0003] An automatic switch, that is, a contact group, specifically includes a moving contact group and a static contact group. After the switch machine is converted in place, it is necessary to connect the indicating contacts on the automatic switch to reflect the position state of the point rail (wing rail).

[0004] Currently, in the structure of the switch machine for indication, the moving contact group includes a plurality of moving contacts, the static contact group includes a plurality of static contacts, and the moving contact group and the static contact group are mostly arranged contacts, mostly exposed outside. The moving contact ring on the top of the moving contact and the static contact piece on the static contact are both made of conductive and elastic copper alloy. In each contact insertion process of the moving and static contact groups in the indication structure of the switch machine product, there is an arcing phenomenon (that is, the arc phenomenon generated by the current change). The arcing phenomenon will cause the base surface of the static contact piece to be quickly oxidized to form an oxide film, resulting in poor contact or open circuit when the moving and static contacts are connected, thus affecting the service life of the contacts to a certain extent.

[0005] It should be noted that for contact insertion, that is: when the moving contact ring on the moving contact group is inserted between each group of static contact pieces on the static contact group, that is, when the moving contact ring on the moving contact group is inserted between the two static contact pieces included in each group of static contact pieces, it will be tightly clamped by the two static contact pieces of the group, thereby completing the connection of the indication circuit on the switch machine.

[0006] Therefore, a new type of contact: a sealed contact group is currently introduced to replace the existing conventional, non-sealed contact group (including a moving contact group and a static contact group).

[0007] Since the connecting sub-port of the new type of sealed contact group has a different shape structure from the connecting sub-port of the original, ordinary conventional contact group, its driving method is also different from that of the original contact group. Therefore, if the existing driving structure between the contact base (specifically, the support frame on the contact base) in the electric switch machine and the connecting sub-port of the original, ordinary conventional contact group is used, it is impossible to realize the driving between the contact base (specifically, the support frame on the contact base) in the electric switch machine and the connecting sub-port of the new type of sealed contact group (that is, the sealed contact Y-shaped sub-port).

[0008] Therefore, there is an urgent need to develop a technology that can safely and reliably achieve the transmission between the original contact seat of the switch machine and the newly introduced sealed contact group. Summary of the Invention

[0009] The purpose of the present invention is to provide a connection and transmission device for a switch machine and a switch machine in view of the technical defects existing in the prior art.

[0010] To this end, the present invention provides a connection and transmission device for a switch machine, including a connecting plate distributed horizontally;

[0011] At the rear end of the top of the connecting plate, there is a vertical stand;

[0012] At the upper parts of the left and right ends on the front side of the stand, they are respectively hinged to the upper ends of a rocker;

[0013] The lower end of each rocker is respectively hinged to the left and right ends of a connecting rod;

[0014] In the middle of each rocker, there is respectively provided a fork pin protruding forward;

[0015] At the horizontal middle position of the connecting rod, it is slidably connected to the rear end of a longitudinal dial rod;

[0016] Among them, the connecting plate is fixedly arranged on the top surface of the original contact seat of the switch machine;

[0017] The front end of the dial rod is fixedly arranged on the upper surface of the support frame of the original contact seat of the switch machine;

[0018] At both ends of the top of the connecting plate, there is respectively provided a sealed contact group;

[0019] Each fork pin is respectively located in the original sealed contact Y-shaped sub-port on the sealed box of the sealed contact group.

[0020] As can be seen from the technical solutions provided by the present invention above, compared with the prior art, the present invention provides a connection and transmission device for a switch machine and a switch machine, with a scientific structural design, which can safely and reliably achieve the transmission between the original contact seat of the switch machine and the newly introduced sealed contact group, ensuring that the indication circuit of the switch machine can normally give an indication signal for indicating the working state of the switch machine, and has great practical significance.

[0021] In addition, based on the present invention, since a new type of sealed contact group is introduced on the electric switch machine, the sealed contact group can effectively improve the arcing phenomenon generated when the moving and static contacts come into contact, thereby being beneficial to increasing the service life of the contact group in the switch machine.

[0022] It should be noted that in the existing indicating structure of the switch machine products, there is an arcing phenomenon during each contact insertion process of the moving and static contact groups, that is, there is an arcing phenomenon in the original contacts. The arcing phenomenon will cause the base surface of the static contact piece to oxidize rapidly, forming an oxide film, which will lead to poor contact or open circuit when the moving and static contacts are connected, and the indicating circuit cannot be transmitted, ultimately reducing the service life of the contact base. By adopting a sealed contact group, the sealed contact group makes the contacts in a liquid-sealed environment, which can effectively improve the arcing phenomenon generated when the moving and static contacts are in contact, thereby increasing the service life of the contact base. Brief Description of the Drawings

[0023] Figure 1 Schematic perspective view of a connection and transmission device of a switch machine provided by the present invention;

[0024] Figure 2 Cross-sectional view of a connection and transmission device of a switch machine provided by the present invention;

[0025] Figure 3 A connection and transmission device of a switch machine provided by the present invention, which is used to connect the support frame at one end of the original contact base in the switch machine with two sealed contact groups, so as to realize the schematic working state of transmission Figure 1 ;

[0026] Figure 4a Schematic structural diagram of the original contact base in the electric switch machine when installing the newly introduced and novel sealed contact group, that is, the structural diagram when realizing the linkage connection between the original contact base of the existing switch machine and the sealed contact group through the connection and transmission device of the present invention.

[0027] Figure 4b Schematic structural diagram of the original contact base in the electric switch machine when installing the existing ordinary and non-sealed conventional contact group instead of the sealed contact group, that is, the connection structural diagram between the original contact base of the existing switch machine and the conventional contact group before the design of the connection and transmission device of the present invention.

[0028] Figure 5 Schematic perspective view of two sealed contact groups that need to be connected by a connection and transmission device of a switch machine provided by the present invention;

[0029] Figure 6 Schematic working state diagram of a connection and transmission device of a switch machine provided by the present invention when connected to the support frame at one end of the original contact base in the switch machine;

[0030] Figure 7 Schematic cooperative working state diagram of a connection and transmission device of a switch machine provided by the present invention when connected to two sealed contact groups 10;

[0031] Figure 8 A connection and transmission device for a switch machine provided by the present invention, showing the working state of being connected to two sealed contact groups and a support frame at one end of the original contact base in the switch machine Figure 2 ;

[0032] Figure 9 A connection and transmission device for a switch machine provided by the present invention, showing the working state of being connected to two sealed contact groups and a support frame at one end of the original contact base in the switch machine Figure 3 ;

[0033] In the figure: 1 - connecting plate; 2 - lever; 3 - rocker; 4 - connecting rod; 5 - rocker pin shaft;

[0034] 6 - connecting rod pin shaft; 7 - fork pin shaft; 8 - first bushing; 9 - second bushing; 10 - sealed contact group;

[0035] 11 - contact base; 12 - sealed contact Y-shaped socket; 13 - support frame;

[0036] 30 - slideway hole; 101 - vertical frame, 102 - lever movable opening slot. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0039] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0040] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0041] See Figures 1 to 3 、 Figures 4a to 4b 、 Figures 5 to 9 , the present invention provides a connecting and driving device for a switch machine, which is used to realize the transmission between the original contact seat 11 and the sealed contact group 10 of the switch machine. It includes a connecting plate 1 horizontally distributed;

[0042] At the rear end of the top of the connecting plate 1, there is a vertical stand 101;

[0043] The upper parts of the left and right ends on the front side of the stand 101 are respectively hinged (i.e., rotatably connected) to the upper ends of a rocker 3;

[0044] The lower ends of each rocker 3 are respectively hinged to the left and right ends of a connecting rod 4;

[0045] In the middle of each rocker 3, there is respectively provided a fork pin 7 protruding forward;

[0046] The lateral middle position of the connecting rod 4 is slidably connected to the rear end of a longitudinal dial rod 2;

[0047] Among them, the connecting plate 1 is fixedly arranged on the top surface of the original contact seat 11 of the switch machine;

[0048] The front end of the dial rod 2 is fixedly arranged on the upper surface of the support frame 13 of the original contact seat 11 of the switch machine;

[0049] At both ends of the top of the connecting plate 1, there is respectively provided a sealed contact group 10 (a total of two sealed contact groups 10);

[0050] Each fork pin 7 is respectively located in the original sealed contact Y-shaped socket 12 on the sealed box 1001 of the sealed contact group 10.

[0051] In the present invention, specifically, there is a lateral gap between the two sealed contact groups 10;

[0052] The dial rod 2 is located below the lateral gap;

[0053] The support frame 13 on the original contact seat 11 of the switch machine is located directly below the lateral gap.

[0054] In the present invention, the original contact base 11 of the switch machine, which is applicable to the connecting and driving device of the present invention, is a mature finished product device in the prior art. Specifically, it can be the contact bases of all models included in the ZD6 series electric switch machines produced by Tianjin Railway Signal Co., Ltd. The connecting and driving device of the present invention is used to transmit the indicating action from the contact base.

[0055] In the present invention, the sealed contact group 10 applicable to the connecting and driving device of the present invention is a mature finished product device in the prior art. Specifically, it can be the sealed contacts produced by Beijing Guoxing Lide Material Technology Co., Ltd. The connecting and driving device of the present invention is used to transmit the indicating action of the contact base (i.e., the original contact base 11 of the switch machine) to the connecting sub-port of the sealed contacts (i.e., the sealed contact group 10), and this connecting sub-port is the Y-shaped sub-port 12 of the sealed contacts, so as to realize the transmission function of the indicating signal.

[0056] It should be noted that the sealed contacts (i.e., the sealed contact group 10) are finished product devices produced by Beijing Guoxing Lide Material Technology Co., Ltd. The technical solution of the present invention only applies the sealed contacts. The characteristics of the sealed contacts are that each set of moving and static contacts are installed in a sealed closed box filled with liquid inside, effectively solving the problem of arc damage and corrosion to the static contact pieces when the moving contact strikes the static contact.

[0057] The working principle of the sealed contacts (i.e., the sealed contact group 10) is the same as that of the original contacts (such as Figure 4b the ordinary contacts shown). The difference is that the way of transmitting the action has been changed. The action transmission of the moving contact has been changed from directly connecting the moving contact with the support frame to: transmitting the rotational action through the Y-shaped sub-port on the side (i.e., the Y-shaped sub-port 12 of the sealed contacts). If you want the sealed moving and static contacts to work, you can only transmit the action from the Y-shaped sub-port to make it rotate, drive the internal moving contact to rotate, and the moving contact strikes the static contact to connect the circuit. The indicating post (locking post) and the support frame in the contact base do not change their actions. If you want to transmit the action to the Y-shaped sub-port of the sealed contacts, the transmission of the action must be carried out. Therefore, the design of the connecting and driving device specifically carried out by the present invention is necessary.

[0058] In the present invention, specifically in implementation, the connecting plate 1 is fixed to the top surface of the original contact base 11 in the switch machine through 90° countersunk head tapered screws;

[0059] Four 90° countersunk head tapered screws pass through the four through holes on the left and right ends of the connecting plate 1 and are threadedly connected to the four threaded holes reserved on the top surface (upper surface) of the contact base 11;

[0060] The sealed contact group 10 is fixed to the connecting plate 1 through round head screws.

[0061] In the present invention, specifically, the upper parts of the left and right ends on the front side of the vertical frame 101 are respectively hinged to the upper ends of the rocker arms 3 through a rocker pin shaft 5;

[0062] In the present invention, specifically, the lower ends of each rocker arm 3 are respectively hinged to the left and right ends of the connecting rod 4 through a connecting rod pin shaft 6;

[0063] Specifically, a first bushing 8 is sleeved on the outer circumference of the connecting rod pin shaft 6;

[0064] A second bushing 9 is sleeved on the outer circumference of the rocker pin shaft 5.

[0065] In the present invention, specifically, a vertically distributed slideway hole 30 is provided at the horizontal middle position of the connecting rod 4;

[0066] After the rear end round rod part 201 of the shift lever 2 longitudinally passes through the slideway hole 30, it is connected to a shift lever head (for example, by threaded connection, that is, the rear end round rod part 201 of the shift lever 2 has an external thread, the shift lever head has an internal thread, and the shift lever head can be a hexagonal nut; the size of the shift lever head is larger than the size of the slideway hole 30);

[0067] Specifically, the upper and lower ends of the slideway hole 30 are semicircular in shape, and the middle part is rectangular in shape.

[0068] Specifically, on the connecting plate 1, there is a longitudinally distributed shift lever movable opening groove 102;

[0069] The shift lever movable opening groove 102 is arranged corresponding to the shift lever 2;

[0070] The front end of the shift lever 2 has a support frame docking flat plate 20;

[0071] The support frame docking flat plate 20 is fixedly connected to the support frame 13 by screws.

[0072] Furthermore, there is a through hole at each of the front and rear ends of the support frame docking flat plate 20;

[0073] At the positions corresponding to each through hole at the bottom of the support frame 13, there is a threaded hole respectively;

[0074] After the screw passes through the through hole, it is threadedly connected to the corresponding threaded hole.

[0075] That is to say, the shift lever 2 is fixedly connected to the support frame 13 on the original contact seat 11 of the switch machine by screws.

[0076] In the present invention, specifically, the original sealed contact Y-shaped socket 12 on the sealed contact group 10 has a groove with an open top;

[0077] Each fork pin shaft 7 is located in the groove;

[0078] In terms of specific implementation, the shape of the groove at the top of the sealed contact Y-shaped female port 12 is U-shaped.

[0079] It should be noted that the lever 2 is used to rotate along with the rotation of the support frame 13, and can transmit the movement of the support frame 13 (specifically, the rotational movement performed by the support frame 13 on the original contact seat 11 of the switch machine) to the connecting rod 4 and the rocker 3, and then transmit the movement to the sealed contact Y-shaped female port 12 through the fork pin shaft 7, so as to transmit the movement to the sealed contact group 10, realizing the transmission of the movement and realizing the indication.

[0080] See Figure 4a , Figure 4a is a schematic structural diagram of the original contact seat in the electric switch machine when installing the newly introduced and new type of sealed contact group, that is, the structural diagram when realizing the linkage connection between the original contact seat of the existing switch machine and the sealed contact group through the connection and transmission device of the present invention.

[0081] See Figure 4a As shown, for the original contact seat 11 in the electric switch machine, two support frame installation cavities 1101 are respectively arranged at the upper left and right ends of its upper part;

[0082] In each support frame installation cavity 1101, a longitudinally distributed support frame 13 is pivotally connected (i.e., rotatably connected);

[0083] In terms of specific implementation, the front and rear ends of the support frame 13 are respectively pivotally connected to the front and rear sides of the support frame installation cavity 1101 through a spline shaft 14.

[0084] In terms of specific implementation, the upper end of the indication column (locking column) 15 is connected to the connecting plate 1301 at the rear side of the support frame 13 through a longitudinally distributed connecting shaft 16.

[0085] It should be noted that, as shown in Figure 4a , the support frame 13 rotates around the spline shaft 14. When the switch machine is pulled in place, that is, when the indication column (locking column) 15 falls into the notch of the indication rod, since the upper end of the indication column (locking column) 15 is linked to the support frame 13, the indication column (locking column) 15 drives the support frame 13 to rotate (rotate clockwise); when the switch machine moves out, when the indication column (locking column) 15 is lifted above the notch of the indication rod, the indication column (locking column) 15 drives the support frame 13 to rotate in the reverse direction (rotate counterclockwise).

[0086] Since the top of the support frame 13 is connected to the lever 2 by bolts, when the support frame 13 rotates, the lever 2 is driven to rotate. When the switch machine is pulled into position, the lever 2 rotates to a corresponding position (specifically, while rotating, it moves downward and is close to the lower end of the slide hole 30 in the middle of the connecting rod 4). When the switch machine is extended, the lever 2 corresponds to another position (specifically, while rotating, it moves upward and is close to the upper end of the slide hole 30 in the middle of the connecting rod 4). Each position corresponds to a state represented by the switch machine, which is transmitted to the inside of the sealed contact (i.e., the sealed contact group 10) as the circuit on-off state on the sealed contact, thereby giving an indication.

[0087] It should be noted that, for the present invention, the shift rod 2 and the connecting rod 4 are connected for transmission by means of a slideway, the connecting rod 4 and the rocker 3 are connected by a connecting rod pin 6, and the first bushing 8 is respectively installed at the connection between the connecting rod 4 and the rocker 3 (i.e., the connecting rod pin 6), the rocker 3 and the connecting plate are connected by a rocker pin 5, and a second bushing 9 is installed inside the connection, and a shift fork pin 7 is fastened to the middle part of the rocker 3, and the shift fork pin 7 is used to transmit the action to the sealed contact group 10 (specifically, to the original sealed contact Y-shaped sub-port 12 on the sealed contact group 10).

[0088] In the present invention, the connecting plate 1 is a supporting member of the transmission structure, and plays a supporting and fixing role.

[0089] During the transmission process, the shift rod 2 is fixed on the support frame 13 in the contact seat 11, and the rotational motion transmitted by the support frame 13 is transmitted to the connecting rod 4 and the two rocker arms 3 in turn through the shift rod head at the rear end of the shift rod 2 and the long circular slide hole (i.e., the slide hole 30) in the middle of the connecting rod 4, so that the shift fork pin shaft 7 in the middle of the rocker arm 3 cooperates with the action external interface of the sealed contact group 10 (i.e., the sealed contact Y-shaped sub-port 12), thereby achieving the purpose of transmitting the action.

[0090] It should be noted that see Figure 5 As shown, since the connection sub-port for transmitting the action between the sealed contact (i.e., the sealed contact group 10) and the outside is a Y-shaped sub-port (i.e., the sealed contact Y-shaped sub-port 12), such a sub-port is firstly more convenient to assemble, and secondly, the action space is larger. The Y-shaped sub-port (i.e., the sealed contact Y-shaped sub-port 12) is pivotally connected to the sealed box 1001 of the sealed contact group 10, and the Y-shaped sub-port is rotated by turning the Y-shaped sub-port, and the rotation action is transmitted to the moving contact inside the sealed contact (i.e., the sealed contact group 10), so that it connects and closes the static contact.

[0091] See also Figure 7As shown, considering that the shift fork pin shaft 7 is fixed in the middle of the rocker 3, its position is located in the opening (groove) at the top of the action external interface (i.e., the sealed contact Y-shaped sub-mouth 12) of the sealed contact (i.e., the sealed contact group 10). When the rocker 3 swings with the rotation of the shift lever 2 (the shift lever 2 rotates with the rotation of the support frame 13), the shift fork pin shaft 7 swings accordingly, and the shift fork pin shaft 7 drives the sealed contact Y-shaped sub-mouth 12 in contact with it to rotate, thereby realizing the connection and disconnection of the dynamic and static contacts inside the sealed contact (i.e., the sealed contact group 10), and a circuit representation is given.

[0092] By applying the present invention, the connecting transmission device of the switch machine provided by the present invention can realize safe and reliable action transmission between the original contact seat 11 and the sealed contact group 10 in the electric switch machine, thereby ensuring the normal operation of the switch machine indication circuit (the sealed contact group and other contact groups are key components of the switch machine indication circuit), so that the switch machine indication circuit can normally give an indication signal for indicating the working status of the switch machine.

[0093] See also Figure 4b , Figure 4b It is a structural schematic diagram of the original contact seat in the electric switch machine when no sealed contact group is installed but an existing ordinary, non-sealed conventional contact group is installed, that is, a connection structural diagram of the original contact seat of the existing switch machine and the conventional contact group before the connection transmission device of the present invention is designed.

[0094] See also Figure 4b As shown, for the original contact seat 11 in the electric switch machine, the moving contact 17 on the original contact seat 11 in the switch machine is directly installed on the support frame 13 in the contact seat 11, and the static contact 16 is directly installed on the upper surface of the contact seat 11. When the indicating column (i.e., the locking column) 15 moves up and down, it drives the support frame 13 to rotate, and the moving contact 17 on the support frame 13 rotates with the support frame 13. When the switch machine moves to the right position, the moving contact ring 1701 on the moving contact 17 is driven into the static contact sheet 1601 of the static contact 16, thereby connecting the indicating circuit.

[0095] It should be noted that see Figure 4b As shown, for the existing switch machine structure, the static contact is installed on the upper plane of the contact seat 11 and fastened with screws. The static contact 16 has a terminal for connecting the circuit wiring; the dynamic contact 17 is fastened to the support frame 13 with screws, and is driven into the static contact as the support frame 13 rotates, thereby connecting the circuit, or withdrawing from the static contact to disconnect the circuit. When it is driven into the static contact on the other side, the circuit on the other side is connected.

[0096] See also Figure 4bAs shown, for the existing switch machine structure, the static contact 16 of the original contact group is installed on the upper plane of the contact base 11 and fixed with screws. The moving contact 17 is fixed on the support frame 13, and the moving contact 17 is fixed on the upper surface of the support frame 13 with screws. It is equivalent to an electric circuit switch. The static contact 16 connects the circuit. When the moving contact is inserted into the static contact, the circuit is connected, and when it withdraws, the circuit is disconnected.

[0097] The moving contact 17 is connected to the support frame 13. The rotation of the support frame 13 drives the movement of the moving contact 17. The up and down movement of the inspection post (locking post) in the contact base 11 will drive the rotation of the support frame 13. The rotation of the support frame 13 is an intermediate transmission part for the inspection post (locking post) to transmit the action to the moving contact. When the indicating rod (locking rod) on the switch machine is switched in place, the notch on the indicating rod (locking rod) is directly below the inspection post (locking post). At this time, the inspection post (locking post) moves downward and falls into the notch. When the indicating rod (locking rod) on the switch machine is in the process of conversion, at this time, the inspection post (locking post) moves upward and lands on the upper surface of the indicating rod (locking rod), so as to realize the functions of in-place action indication, and cut off the indication when the action is not in place.

[0098] However, for Figure 4b the existing switch machine structure shown, since both the moving contact 17 and the static contact 16 are exposed to the air, when the moving contact ring 1701 on the moving contact 17 is inserted into the static contact piece 1601 of the static contact 16, it is easy to generate arcing phenomenon, causing oxidation on the surface of the static contact piece 1601, and then leading to virtual connection of the circuit, affecting the indicating circuit.

[0099] Therefore, in the present invention, a new type of sealed contact (i.e., the sealed contact group 10) is newly introduced. Its feature is that both the moving contact and the static contact exist in a sealed box 1001 filled with liquid, so as to reduce the exposure of the moving and static contacts to the air and reduce the arcing phenomenon between the contacts, thereby prolonging the service life of the moving contact and the static contact. However, this sealed contact also has a problem of action transmission: both the moving contact and the static contact in the sealed contact (i.e., the sealed contact group 10) are in the sealed box, so the sub-port for action transmission in the sealed contact can only be the sealed contact Y-shaped sub-port 12 on the side of the sealed box of the sealed contact group 10, and the action is transmitted to the inside of the sealed contact (i.e., the sealed contact group 10) through the sealed contact Y-shaped sub-port 12.

[0100] The present invention fully considers that the mechanical structure is a stable and reliable way to transmit actions, selects a mechanical solution for structural design, and transmits actions through a small swing angle and displacement. First, the link structure is considered for design. Its transmission main body is a four-bar mechanism. Through the instability of the quadrilateral, it stably transmits actions in a small swing state, so as to achieve safe and reliable action transmission.

[0101] By applying the present invention, the movement of the indicating column (i.e., locking column) 15 on the original contact group 11 in the electric switch machine and the support frame 13 connected to the indicating column can be transmitted to the sealed contact Y-shaped sub-port 12 in the sealed contact (i.e., sealed contact group 10), thereby ensuring the normal on and off of the indicating circuit.

[0102] In view of the original contact seat 11 in the electric switch machine, the indicating column (i.e., locking column) 15 inside the contact seat can drive the support frame 13 to rotate together. Therefore, by applying the connecting transmission device provided by the present invention, the present invention can transmit the rotational movement (i.e., action) of the support frame 13 to the sealed contact Y-shaped sub-port 12 on the side of the sealing box of the sealed contact via the shift rod 2, the connecting rod 4, the rocker 3, and the shift fork pin shaft 7. The shift fork pin shaft 7 shifts the sealed contact Y-shaped sub-port 12 in contact with it to rotate, thereby transmitting the action to the moving contact inside the sealed contact (i.e., the sealed contact group 10) through the sealed contact Y-shaped sub-port 12, so that the moving contact and the static contact piece inside the sealing box of the sealed contact (i.e., the sealed contact group 10) are closed, thereby making the indicating circuit connected.

[0103] In the present invention, in a specific implementation, the connecting plate 1, the shifting rod 2, the rocking arm 3, the connecting rod 4, the rocking arm pin 5, the connecting rod pin 6, the shift fork pin 7, the sealed contact Y-shaped sub-mouth 12 and the support frame 13 are all made of 45# steel;

[0104] The first bushing 8 and the second bushing 9 can be made of tin bronze or other wear-resistant insulating materials with wear-resistant properties.

[0105] It should be noted that for the sealed contact (i.e., the sealed contact group 10), in the sealed contact, only the static contact piece and the moving contact pass the current, and most of the moving contact is made of insulating material (the moving contact ring at the top of the moving contact is made of metal), and no current will pass through the structure connected to the sealed contact Y-shaped sub-port 12. For a switch machine, the moving contact and the static contact are equivalent to the switch of the switch machine indicating circuit, and its function is only to connect the indicating circuit when the moving contact ring at the top of the moving contact is driven into the static contact piece, and to disconnect the indicating circuit when the moving contact ring at the top of the moving contact is separated from the static contact.

[0106] In the present invention, the functions of each component are described as follows:

[0107] The connecting plate 1 is used for connecting and fixing, and its surface is plated with black zinc to prevent surface oxidation and rust.

[0108] The lever 2 is used to transmit the rotational motion of the support frame to the 4-link.

[0109] The rocker 3 is used to move around the rocker pin 5 and has supporting and transmission functions.

[0110] The connecting rod 4 is used to connect the rocker 3 and transmit the movement of the lever 2, and is a component structure of the four-bar mechanism;

[0111] It should be noted that the four-bar mechanism includes a lever 2, two rockers 3, and a connecting rod 4.

[0112] The rocker pin 5 is used to be fixed on the vertical frame 101 of the connecting plate 1 and plays the role of connecting the rocker 3 and the connecting plate 1.

[0113] The connecting rod pin 6 is used to be fixed on the rocker 3 and connect the connecting rod 4, thereby forming a four-bar mechanism.

[0114] The fork pin 7 is used to transmit the movement of the four-bar mechanism to the sealed contact Y-shaped socket 12 and plays the role of movement transmission.

[0115] The first bushing 8 and the second bushing 9 are made of materials different from those of the connecting parts and play the roles of protection and wear resistance.

[0116] The sealed contact group 10 is used to act as a switch for turning on and off the circuit and form a circuit path.

[0117] The original contact base 11 of the switch machine, as a main component of the switch machine, is used for starting the circuit, switching, and indicating components.

[0118] The sealed contact Y-shaped socket 12 is used as a transmission interface for contact movement.

[0119] The support frame 13 is located in the original contact base 11 of the switch machine and is used to transmit the movement of the indicating post (i.e., the locking post) 15 in the original contact base 11 of the switch machine to the lever 2 in the present invention.

[0120] It should be noted that in the present invention, what is transmitted in the original contact base 11 of the switch machine is movement or force transmission. With the help of the device of the present invention, the movement of the indicating post (i.e., the locking post) in the original contact base 11 of the switch machine can be transmitted to the sealed contact (i.e., the sealed contact group 10) and converted into an electrical signal and transmitted outward through the sealed contact group 10.

[0121] For the switch machine, the indicating circuit is the circuit that shows the position of the indicating rod. When the indicating rod of the switch machine is in the pulled-in locking position, the pulled-in position indicating circuit is turned on, thereby outputting a pulled-in position indicating signal to the external control room or test bench; when the indicating rod of the switch machine is in the extended locking position, the extended position indicating circuit is turned on, thereby outputting an extended position indicating signal to the external control room or test bench. The relevant content of the switch machine indicating circuit is common knowledge of existing switch machine equipment and will not be elaborated here.

[0122] In addition, based onFigures 1 to 3 , Figures 4a to 4b , Figures 5 to 9 The connecting and transmission device of the switch machine provided by the present invention as shown, the present invention also provides a switch machine, which includes a contact seat 11 and a sealed contact group 10, and the connecting and transmission device of the switch machine as described above;

[0123] The bottom surface of the front end of the shift lever 2 in the connecting and transmission device of the switch machine (i.e., the bottom surface of the support frame docking flat plate 20) is fixedly arranged on the upper surface of a support frame 13 in the contact seat 11;

[0124] Each shift fork pin shaft 7 in the connecting and transmission device of the switch machine is respectively located in the original sealed contact Y-shaped sub-port 12 of a sealed contact group 10.

[0125] It should be noted that for Figure 4a the contact seat of the switch machine as shown, two sets of the connecting and transmission devices of the switch machine provided by the present invention can be installed thereon, and then a linkage connection is generated with four sealed contact groups 10 to realize the transmission relationship.

[0126] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A connecting and transmission device for a switch machine, characterized in that, it includes a connecting plate (1) distributed horizontally; At the rear end of the top of the connecting plate (1), there is a vertical stand (101); The upper parts of the left and right ends on the front side of the stand (101) are respectively hinged to the upper ends of a rocker (3); The lower ends of each rocker (3) are respectively hinged to the left and right ends of a connecting rod (4); A fork pin (7) protruding forward is respectively arranged in the middle of each rocker (3); The horizontal middle position of the connecting rod (4) is slidably connected to the rear end of a shift lever (2) distributed longitudinally; Among them, the connecting plate (1) is fixedly arranged on the top surface of the original contact seat (11) of the switch machine; The front end of the shift lever (2) is fixedly arranged on the upper surface of the support frame (13) of the original contact seat (11) of the switch machine; Sealed contact groups (10) are respectively arranged at both ends of the top of the connecting plate (1); Each fork pin (7) is respectively located in the original sealed contact Y-shaped socket (12) on the sealed box (1001) of the sealed contact group (10); A vertically distributed slideway hole (30) is arranged at the horizontal middle position of the connecting rod (4); The rear end round rod part (201) of the shift lever (2) longitudinally passes through the slideway hole (30) and is connected to a shift lever head; The connecting plate (1) has a longitudinally distributed shift lever movable opening groove (102); The shift lever movable opening groove (102) is arranged corresponding to the shift lever (2).

2. The connecting and transmission device for a switch machine according to claim 1, characterized in that, The upper parts of the left and right ends on the front side of the stand (101) are respectively hinged to the upper ends of the rocker (3) through a rocker pin (5); The lower ends of each rocker (3) are respectively hinged to the left and right ends of the connecting rod (4) through a connecting rod pin (6).

3. The connecting and transmission device for a switch machine according to claim 2, characterized in that, A first bushing (8) is sleeved on the circumferential outer side of the connecting rod pin (6); A second bushing (9) is sleeved on the circumferential outer side of the rocker pin (5).

4. The connecting and transmission device for a switch machine according to claim 1, characterized in that, The upper and lower ends of the slideway hole (30) are semicircular in shape and the middle part is rectangular in shape.

5. The connecting and transmission device for a switch machine according to claim 1, characterized in that, The front end of the shift lever (2) has a support frame docking flat plate (20); The support frame docking flat plate (20) is fixedly connected to the support frame (13) by screws.

6. The connecting and transmission device for a switch machine according to claim 5, characterized in that, Through holes are respectively arranged at the front and rear ends of the support frame docking flat plate (20); Threaded holes are respectively arranged at the positions of the bottom of the support frame (13) corresponding to each through hole; The screws pass through the through holes and are threadedly connected to the corresponding threaded holes.

7. The connecting and transmission device for a switch machine according to claim 1, characterized in that, The original sealed contact Y-shaped socket (12) on the sealed contact group (10) has a groove with an open top; Each fork pin (7) is located in the groove.

8. The connecting and transmission device for a switch machine according to claim 7, characterized in that, The shape of the groove at the top of the sealed contact Y-shaped female socket (12) is U-shaped.

9. A switch machine, characterized in that it includes a contact seat (11) and a sealed contact group (10), and a connecting and driving device of the switch machine as described in any one of claims 1 to 8; the front bottom surface of the shift lever (2) in the connecting and driving device of the switch machine is fixedly arranged on the upper surface of a support frame (13) of the contact seat (11); each shift fork pin shaft (7) in the connecting and driving device of the switch machine is respectively located in the original sealed contact Y-shaped female socket (12) of a sealed contact group (10).

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